<?php
/**
 * crcl/base
 *
 * Copyright 2013 CRCL - André Sabosch - info@crcl.de
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

declare(encoding = 'UTF-8');
namespace crcl\base\mvc\view;

interface IHtml
{
}

class Html extends Base implements IHtml
{
  public function execute(\crcl\base\mvc\ICommand $oCommand = \NULL)
  {
    if ($this->iStatus == \crcl\base\mvc\Response::STATUS_OK)
    {
      if (\is_null($oCommand))
      {
        $oCommand = $this->oCommand;
      }

      $aValues = array();
      if (\crcl\base\Tier::isLocal())
      {
        $oTemplate = html\Template::fromCommand($oCommand);
        $sContent = $oTemplate->compile();

        $this->saveCompiledTemplate($sContent, $oCommand);
        $this->sOutput = $sContent;
      }
      else
      {
        $this->sOutput = $this->getCompiledTemplate($oCommand);
      }

      $this->iStatus  = 200;
      $this->addContentTypeHeader($oCommand);
    }
    return $this;
  }

  /** PRIVATE *************************************************************************************/

   private function getCompiledTemplateFile(\crcl\base\mvc\ICommand $oCommand)
  {
    $sDirectory = \crcl\base\application\Path::getDirectory(\crcl\base\application\Path::DIR_PAGES);
//    if ($oCommand->hasVersion())
//    {
//      $sDirectory .= $oCommand->getVersion() . '/';
//    }
    if ($oCommand->hasGroup())
    {
      $sDirectory .= $oCommand->getGroup() . '/';
    }
    $sFile = $sDirectory . \strtolower($oCommand->getController()) . '/' .
      $oCommand->getAction() . '.xhtml';

    return $sFile;
  }

  private function getCompiledTemplate(\crcl\base\mvc\ICommand $oCommand)
  {
    $sFile = self::getCompiledTemplateFile($oCommand);
    $content = @\file_get_contents($sFile);
    if ($content === \FALSE)
    {
      throw new Exception(
        Exception::ERROR_HTML_NOCOMPILEDTEMPLATE,
        array('file' => $sFile, 'command' => $oCommand));
    }
    return $content;
  }

  private function addContentTypeHeader(\crcl\base\mvc\ICommand $oCommand)
  {
    if ($oCommand->hasXhtml())
    {
      $this->aHeaders['Content-Type'] = 'application/xhtml+xml; charset=utf-8';
    }
    else
    {
      $this->aHeaders['Content-Type'] = 'text/html; charset=utf-8';
    }
  }

  private function saveCompiledTemplate($sContent, \crcl\base\mvc\ICommand $oCommand)
  {
    $sFile = $this->getCompiledTemplateFile($oCommand);
    if (!\file_exists(\dirname($sFile)))
    {
      \mkdir(\dirname($sFile), 0777, \TRUE);
    }
    \file_put_contents($sFile, $sContent);
  }
}